Home / 15,608.13-21,539.21-8,534.53

Finding the Fourth Proportional to 15,608.13, 21,539.21 and 8,534.53

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Solution

The fourth proportional to 15,608.13, 21,539.21 and 8,534.53 is: 11,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.13 : 21,539.21 = 8,534.53 : x
  2. Step 2: Convert to fraction form
    15,608.13/21,539.21 = 8,534.53/x
  3. Step 3: Cross multiply
    15,608.13x = 21,539.21 × 8,534.53
  4. Step 4: Simplify right side
    15,608.13x = 183,827,033.92
  5. Step 5: Solve for x
    x = 183,827,033.92/15,608.13
  6. Step 6: Final answer
    x = 11,777.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.